Adding Dot For Linspace

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Ertan Aras
Ertan Aras 2019-5-6
评论： Star Strider 2019-5-6
Hello friends,I have parametric equation about 5 paper,I want to add dot for every * and / signs to use linspace.How can I do automatically
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Rik
Rik 2019-5-6
Have a read here and here. It will greatly improve your chances of getting an answer.

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Star Strider
Star Strider 2019-5-6
编辑：Star Strider 2019-5-6
Use the vectorize (link) function.
The only change you temporatily need to make is to create your function as a character vector by putting single quotes (') around it first, then removing them from the vectorize output.
Example —
f = exp(-0.1*t) * sin(2*pi*t);
fv = vectorize('exp(-0.1*t) * sin(2*pi*t)')
producing:
fv =
'exp(-0.1.*t) .* sin(2.*pi.*t)'
You then have to manually edit your expression to put it back as a valid expression. That simply means removing the single quotes:
f = exp(-0.1.*t) .* sin(2.*pi.*t)
and your expression is vectorized, ready for your linspace arguments!
EDIT — Corrected typographical errors.
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Ertan Aras
Ertan Aras 2019-5-6
Thanks a lot.I ve solved this problem utilizing vectorize functions.
Star Strider
Star Strider 2019-5-6
As always, my pleasure!

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更多回答（1 个）

gonzalo Mier
gonzalo Mier 2019-5-6
You have two possibilities here:
  1. In the text file, you replace * by .* and / by ./ in all the document (there is an option in the replace to replace all).
  2. If you have it like a function and want to do it by programming, you can overload the funtion mtimes and mrdivide by times and rdivide as:
function c = mtimes(a,b), c = times(a,b); end
function c = mrdivide(a,b), c = rdivide(a,b); end
You can add this to the end of your file or to your folder.
By preference, always do the first method, as overloading operators is not a good practice unless you try to ofuscate your code, but I have found some moments where it's the only way

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